#include <stdio.h>
int main()
{
        int i=43;
        printf("%d\n",printf("%d",printf("%d",i)));
	printf("test %s\n", (char *)NULL); 
	printf("test %s\n", (char *)NULL); 
	puts(NULL);
	//printf("%s\n", NULL); 
	//printf("%s\n", NULL); 
        return 0;
}
